<template>
  <div>
    <el-input v-if="false" v-model="imageUrl"></el-input>
    <el-image style="max-width: 200px; max-height: 200px" v-if="imageUrl" :src="imageUrl" @click="openImg(imageUrl)"></el-image>
    <el-button icon="el-icon-upload" @click="visible = true" v-if="!disabled" circle></el-button>
    <el-dialog :visible.sync="visible" style="z-index: 1000" width="950px" title="选择图片" append-to-body>
      <el-form :inline="true" @keyup.enter.native="getDataList()">
        <el-form-item>
          <el-button type="primary" @click="uploadHandle()">上传文件</el-button>
        </el-form-item>
      </el-form>
      <el-row>
        <el-col :span="4" v-for="data in dataList" :key="data.id">
          <el-card style="width: 160px;height: 260px" shadow="hover">
            <el-image style="max-height: 150px" :key="data.url" @click="openImg(data.url)" :src="data.url"/>
            <div style="padding: 14px;">
              <el-button type="success" icon="el-icon-circle-check" circle @click="selectImg(data.url)"></el-button>
              <el-button v-if="isAuth('sys:oss:delete')" type="danger" icon="el-icon-delete" circle @click="deleteHandle(data.id)"></el-button>
            </div>
          </el-card>
        </el-col>
      </el-row>
      <el-pagination
        @size-change="sizeChangeHandle"
        @current-change="currentChangeHandle"
        :current-page="pageIndex"
        :page-sizes="[12, 18, 24, 48]"
        :page-size="pageSize"
        :total="totalPage"
        layout="total, sizes, prev, pager, next, jumper">
      </el-pagination>
    </el-dialog>
    <!-- 弹窗, 上传文件 -->
    <upload v-if="uploadVisible" ref="upload" @refreshDataList="getDataList"></upload>
  </div>
</template>

<script>
  import Upload from '../../views/modules/oss/oss-upload'

  export default {
    name: 'el-img',
    componentName: 'ElImg',
    data () {
      return {
        dataList: [],
        pageIndex: 1,
        pageSize: 12,
        totalPage: 0,
        visible: false,
        uploadVisible: false,
        imageUrl: ''
      }
    },
    components: {
      Upload
    },
    props: {
      disabled: {
        type: Boolean,
        default: false
      },
      // 接受外部v-model传入的值，必须使用value
      value: ''
    },
    watch: {
      imageUrl (val, oldVal) {
        if (val !== oldVal) {
          this.$emit('input', this.imageUrl)
        }
      },
      value (val) {
        this.imageUrl = val
      }
    },
    mounted () {
      this.getDataList()
      this.imageUrl = this.value
    },
    methods: {
      // 上传文件
      uploadHandle () {
        this.uploadVisible = true
        this.$nextTick(() => {
          this.$refs.upload.init()
        })
      },
      selectImg (url) {
        this.imageUrl = url
        this.visible = false
      },
      // 获取数据列表
      getDataList () {
        this.$http({
          url: '/sys/oss/list',
          method: 'get',
          params: {
            'page': this.pageIndex,
            'limit': this.pageSize
          }
        }).then(({ data }) => {
          if (data && data.code === 0) {
            this.dataList = data.page.records
            this.totalPage = data.page.total
          } else {
            this.dataList = []
            this.totalPage = 0
          }
        })
      },
      // 删除
      deleteHandle (id) {
        let ids = [id]
        this.$confirm('确定删除操作?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          this.$http({
            url: '/sys/oss/delete',
            method: 'post',
            data: ids
          }).then(({ data }) => {
            if (data && data.code === 0) {
              this.$message({
                message: '操作成功',
                type: 'success',
                duration: 1500
              })
              this.getDataList()
            }
          })
        }).catch(() => {
        })
      },
      // 每页数
      sizeChangeHandle (val) {
        this.pageSize = val
        this.pageIndex = 1
        this.getDataList()
      },
      // 当前页
      currentChangeHandle (val) {
        this.pageIndex = val
        this.getDataList()
      }
    }
  }
</script>
